Professor Sinclair said he hoped the pill would be available to the public within five years and cost the same each day as a cup of coffee.
But the professor from the Department of Genetics at Harvard Medical School warned people not to try to reverse the aging process before the science has been published or peer reviewed.

‘We do not recommend people go out and take NAD precursors as they have not yet formally tested for safety,’ he said.

The science behind the new technique involves the molecule nicotinamide adenine dinucleotide (NAD), which plays a role in generating energy in the human body.

The chemical is already used as a supplement for treating Parkinson’s disease and fighting jet lag.